Re: [time-nuts] Measuring the accurcy of a wrist watch

but it will be the wrong signal. Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Chris Albertson Sent: Friday, April 18, 2014 08:44 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Measuring

Re: [time-nuts] Measuring the accurcy of a wrist watch

to the watch with the edges free? Regards, David Partridge -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Robert Darlington Sent: 18 April 2014 19:49 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Measuring

Re: [time-nuts] Measuring the accurcy of a wrist watch

Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch On Thu, Apr 17, 2014 at 11:12 PM, Hal Murray hmur...@megapathdsl.netwrote: Steel makes very good springs. Are there any non-magnetic materials that are close? I think they can use some kind of non-magnetic

Re: [time-nuts] Measuring the accurcy of a wrist watch

of precise time and frequency measurement Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch On Thu, Apr 17, 2014 at 11:12 PM, Hal Murray hmur...@megapathdsl.netwrote: Steel makes very good springs. Are there any non-magnetic materials

Re: [time-nuts] Measuring the accurcy of a wrist watch

Early watches were more susceptible to magnetic influence than were later... this is primarily because the early watches used high carbon steel hairsprings for the balance wheel, and when they got magnetized, the spring coils would stick together... Later watches used elinvar for the hairspring

Re: [time-nuts] Measuring the accurcy of a wrist watch

i...@blackmountainforge.com said: My concern is that the moving balance wheel could have an eddy current induced into it and the resulting magnetic field might cause it to slow down. If that's a problem, it should be possible to measure it. That assumes the pickup works when near but not

Re: [time-nuts] Measuring the accurcy of a wrist watch

On Thu, Apr 17, 2014 at 11:12 PM, Hal Murray hmur...@megapathdsl.netwrote: Steel makes very good springs. Are there any non-magnetic materials that are close? I think they can use some kind of non-magnetic stainless steel Also this might be a moot point because I got a good strong signal

Re: [time-nuts] Measuring the accurcy of a wrist watch

At least for low-end quartz+mechanical watch movements, magnetic fields can cause the watch to stop mechanically ticking or even produce false ticks to cause dial to spin at a furious rate. e.g. By holding my watches at a certain angle in the field of an AC tape degausser, I can make them run

Re: [time-nuts] Measuring the accurcy of a wrist watch

Commercially they use piezo transducers (bender disks) in direct contact with the watch to hear them tick. I did my best to build one up several weeks ago. I could hear ants walking but my cheap swiss movement was just too quiet. It was amazingly quiet, even going through a preamp and dialing

Re: [time-nuts] Measuring the accurcy of a wrist watch

I have a Timex watch that's probably seven or eight years old. It has an LCD readout. The buttons haven't worked in years. It looses about one second every three or four months. I have to take out the four microscopic screws in the back to get into it to set it. The only reason I hang

Re: [time-nuts] Measuring the accurcy of a wrist watch

...@febo.com] Im Auftrag von Chris Albertson Gesendet: Mittwoch, 16. April 2014 20:56 An: Tom Van Baak; Discussion of precise time and frequency measurement Betreff: Re: [time-nuts] Measuring the accurcy of a wrist watch I just did an experiment. Place a simple quartz movement wrist watch

Re: [time-nuts] Measuring the accurcy of a wrist watch

and frequency measurement' Betreff: Re: [time-nuts] Measuring the accurcy of a wrist watch Tom, can you explain what exactly you understand by a large coil of wire? Sorry, by large I meant a large number of turns; the coil itself is quite small. Rather the winding one myself I just

Re: [time-nuts] Measuring the accurcy of a wrist watch

Mark, is wrist watch not the common English word for a clock that you wear at your wrist? In my case it is a BREITLING Aerospace chronometer. Best regards Ulrich -Ursprungliche Nachricht- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Mark Sims

Re: [time-nuts] Measuring the accurcy of a wrist watch

Tom, Thank you for your response. I don't think I could improve on the accuracy of this old watch much by trying to regulate it. I was more curious to see if there was any way to determine what was going on in side it with out actually opening it. The buttons on the side have long

Re: [time-nuts] Measuring the accurcy of a wrist watch

: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Ulrich Bangert Sent: Thursday, April 17, 2014 01:15 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch Chris, I do not own a guitar

Re: [time-nuts] Measuring the accurcy of a wrist watch

- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Chris Albertson Gesendet: Mittwoch, 16. April 2014 20:56 An: Tom Van Baak; Discussion of precise time and frequency measurement Betreff: Re: [time-nuts] Measuring the accurcy of a wrist watch I just

Re: [time-nuts] Measuring the accurcy of a wrist watch

Hi: Somewhere here I have a page from a magazine showing a resonant tank circuit at 32768 Hz where the coil is maybe a few inches in diameter. You set any watch running at that frequency and it can count the oscillations. Rather than adjusting the rate to be spot on, the suggestion is to know

Re: [time-nuts] Measuring the accurcy of a wrist watch

Are watches damaged by magnets? I hope not because magnets are common. Yes a guitar does have some powerful Alnico magnets in the coil. If this were a problem I think we would have heard about it. My guess is that watch parts are non-magnets brass and stainless and glass and so on. Not plain

Re: [time-nuts] Measuring the accurcy of a wrist watch

: Thursday, April 17, 2014 17:12 To: Claude Fender; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch Are watches damaged by magnets? I hope not because magnets are common. Yes a guitar does have some powerful Alnico magnets

Re: [time-nuts] Measuring the accurcy of a wrist watch

-boun...@febo.com] On Behalf Of Chris Albertson Sent: Thursday, April 17, 2014 17:12 To: Claude Fender; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch Are watches damaged by magnets?  I hope not because magnets are common

Re: [time-nuts] Measuring the accurcy of a wrist watch

Baak Gesendet: Dienstag, 15. April 2014 15:53 An: Discussion of precise time and frequency measurement Betreff: Re: [time-nuts] Measuring the accurcy of a wrist watch Some research has shown that there is an comparable instrument for ANALOG quarz watches. As far as I understand it does

Re: [time-nuts] Measuring the accurcy of a wrist watch

- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Tom Van Baak Gesendet: Dienstag, 15. April 2014 15:53 An: Discussion of precise time and frequency measurement Betreff: Re: [time-nuts] Measuring the accurcy of a wrist watch Some research has shown

Re: [time-nuts] Measuring the accurcy of a wrist watch

I just did an experiment. Place a simple quartz movement wrist watch on top of a Fender Stratocaster guitar. I get a very strong and easy to detect signal. A loud and sharpt ping once per second. More then 1 volt peak to peak. I can cancel almost all the background hum and hiss in the normal

Re: [time-nuts] Measuring the accurcy of a wrist watch

] Measuring the accurcy of a wrist watch Some research has shown that there is an comparable instrument for ANALOG quarz watches. As far as I understand it does not try to detect the quarz frequency but detects magnetic pulses from the step motors that move the hands

Re: [time-nuts] Measuring the accurcy of a wrist watch

I have a Timex watch that's probably seven or eight years old. It has an LCD readout. The buttons haven't worked in years. It looses about one second every three or four months. I have to take out the four microscopic screws in the back to get into it to set it. The only reason I hang onto

Re: [time-nuts] Measuring the accurcy of a wrist watch

In message 94A06362A4E942EE9EC49A685C099C32@athlon, Ulrich Bangert writes: Has anyone of you ever tried to do this in a time nuts laboratory? Yes. And then I threw my wrist watch away, having documented how shit it was :-) If your smartphone has a magnetometer, you can measure it that way, but

Re: [time-nuts] Measuring the accurcy of a wrist watch

Some research has shown that there is an comparable instrument for ANALOG quarz watches. As far as I understand it does not try to detect the quarz frequency but detects magnetic pulses from the step motors that move the hands of the watch. Has anyone of you ever tried to do this in a time

Re: [time-nuts] Measuring the accurcy of a wrist watch

-subscr...@yahoogroups.com - Original Message - From: Tom Van Baak t...@leapsecond.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Tuesday, April 15, 2014 8:52 AM Subject: Re: [time-nuts] Measuring the accurcy of a wrist watch Some research has shown

Re: [time-nuts] Measuring the accurcy of a wrist watch

Here is a discussion forum page that shows a commercial quartz watch timing machine in use: http://omegaforums.net/threads/quartz-watches-some-information-some-may-find-interesting.5475/ The machine obviously measures the time of each second tick, either electrically or acoustically, because

Re: [time-nuts] Measuring the accurcy of a wrist watch

You don't count the pulses, you measure the separation between the pulses. Just like with the 1PPS output on your C-Beam. -Chuck Harris Max Robinson wrote: In the United States we can buy analog quarts watches from Wal-Mart for under 15 dollars. When the battery dies you don't even bother